Nitrogen-vacancy (NV) centres in diamond are point-like defects that have attracted a lot of attention as promising candidates for quantum technologies particularly sensing and imaging nanoscale magnetic fields. For this application, the use high NV density within high-quality layer is prime interest. In previous works, it has been demonstrated situ doping with N2O rather than N2 during chemica...

in this study un-doped and eu-doped zno nanorods and microrads were fabricated by chemical vapor deposition (cvd) method. the effects of annealing, synthesis temperature and structure on structural and photoluminescence properties of eu-doped zno samples were studied in detail. prepared samples were characterized using x-ray diffraction (xrd), scanning electron microscopy (sem), particle size a...

CONTEXT The age-related decline in dehydroepiandrosterone (DHEA) levels is thought to be of importance for general and vascular aging. However, data on the association between DHEA and mortality are conflicting. OBJECTIVES We tested the hypothesis that low serum DHEA and DHEA sulfate (DHEA-S) levels predict all-cause and cardiovascular disease (CVD) death in elderly men. DESIGN, SETTING, AN...

The intrinsic properties of vertically aligned graphene (VG), such as a high ratio exposed active edge sites compared to inert basal sites, non-stacking morphology and large surface-to-volume make it applicable numerous advanced technologies sensors, flexible electronics fuel cells. Plasma-enhanced chemical vapour deposition has emerged promising technique synthesise at lower temperatures than ...

BACKGROUND Nitrate is a dietary component as well as an endogenously formed metabolite and source of the signaling molecule nitric oxide. Harmful as well as beneficial effects of nitrate have been advocated. Data regarding the prognostic relevance of plasma nitrate are limited. The aim of this study was to evaluate the prospective association of plasma nitrate with cardiovascular disease (CVD) ...

Novel chemical vapor deposition (CVD) process was successfully developed for the growth of Sr2Si5N8:Ce phosphors with elevated luminescent properties. Metallic strontium was used as a vapor source for producing Sr3N2 vapor to react with Si3N4 powder via a homogeneous gas-solid reaction. The phosphors prepared via the CVD process showed high crystallinity, homogeneous particle size ranging from ...

The deposition of yttria-doped zirconia has been experimented systematically in various types of porous ceramic substrates by a modified chemical vapor deposition (CVD) process operating in an opposing reactant geometry using water vapor and corresponding metal chloride vapors as reactants. The effects of substrate pore dimension and structure, bulk-phase reactant concentration, reactant diffus...